Ah, and now I think I understand . . . I found a link in the comments of the YouTube video, and now see that there is a set of PAID actions in the Asset Store, which apparently has the demo scene that I saw in the video. I just have the set that was linked from this thread. . .

Since we're on the topic, though, what is the difference between the two sets of actions exactly?

One is free - one is paid.. that is all.. different people, different actions

Thanks, dudebxl. I've got both now! :-)

Question: I've got a set of states, each containing multiple DoTween actions, chained/sequenced together. As expected, the actions within each state are invoked and completed before the actions in the next state are invoked. I want to reverse the entire chain, but it seems that states containing "play backward by ID" action, when similarly chained, do not wait for a given state's actions to complete, e.g. they fire in sequence, but occur concurrently.

I don't want to insert "wait" actions, as this will most likely disrupt the fluidity of the sequence. Any thoughts as to how to accomplish this?